I fixed it by replacing the faulty GPU. Same issue; only video at the external video output. [br]
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I tried another LCD, inverter and powersupply. No succes, so I replaced it with a K1200M with custom firmware.
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for this issue it’s crucial to know if the external screen is attached as secondary or primary.
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logon screen at secondary screen: LCD is not being. Initialized due to loose connection. [br]
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I found out troubleshooting that the external screen is mounted as primary when I disconnect the internal lcd partially.
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The external screen get primary if the internal lcd is not connected right. if you get a loginscreen at the external screen, this might indicated a loose connection. [br]
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with the logon screen on the faulty internal LCD you will get a blurred background visible on the external. In my situation this was a result of a faulty GPU that didn’t feed the internal LCD properly.
I fixed it by replacing the faulty GPU. Same issue; only video at the external video output. [br]
I tried another LCD, inverter and powersupply. No succes, so I replaced it with a K1200M with custom firmware.